AirHint found the following cheapest return flights from Brussels (BRU) to Keflavik (KEF) in May 2026 (see full year).

Return flights

11 May - 20 May	Scandinavian Airlines
20 May - 06 Jun	Scandinavian Airlines
11 May - 17 May	Icelandair	direct
11 May - 20 May	Icelandair	direct
23 May - 30 May	Icelandair	direct
20 May - 06 Jun	Icelandair	direct

Also check the deals for one-way flights from Brussels to Keflavik in May.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Brussels to Keflavik in May from $277

Return flights